Page 2
FEBCO Model 805Y (
3
/
4
" - 2")
Inlet
Shutoff
Outlet
Shutoff
#2
Testcock
#3
Testcock
#4
Testcock
A
36
35
Detail "A"
3/4" & 1"
Model 805YR
#1
Testcock
First
Check
Second
Check
29
1
11
12
13
29A
8
9
10
30
7
30
SERVICE PROCEDURES FOR MODELS 805Y, 805YB, 805YS
1. Disassembly-Check Valves
a. Close inlet and outlet shut-off valves. Bleed residual pressure by opening
#
2,
#
3 and
#
4 testcocks.
b. Unscrew cap using appropriate size wrench. NOTE: Cap is spring loaded.
c. Remove the spring and check assembly.
d. If any calcium or similar material has built-up on the inside surfaces of the guidehole in the cap, it can be removed with careful use
of a standard reamer.
(1)
3
/
4
" through 1" devices: .6250 (5/8) Reamer
(2) 1
1
/
2
" and 2" devices: .8750 (7/8) Reamer
2. Check Valve Seal Replacement
a. Hold check assembly in one hand and remove screw, washer, and seat disc. CAUTION: The use of pliers or other tools may damage
the parts and require unnecessary replacement. Do not scratch or mark sealing or guiding surfaces.
b. Install new disc after cleaning disc holder.
c. Position disc washer and retain with screw.
3. Assembly
a. Use reverse procedure for assembly with the following special instruction.
b. To ease cap installation, apply a thin coating of O-ring lubricant or any FDA approved grease to the O-ring prior to assembly.
c. Test unit to insure proper operation.
TESTING
All mechanical devices should be inspected on a regular basis to ensure they are working correctly. The assembly should be tested at
time of initial installation, after servicing or maintenance, and at least annually thereafter. Acceptable test procedures are published by
the Foundation for Cross Connection Control and Hydraulic Research at the University of Southern California (USC), The American
Water Works Association (AWWA), The American Society of Sanitary Engineering (ASSE Series 5000) and the Canadian Standards
Association (CAN/CSA B64•10). Please consult the regulatory authority in your area for more specific information.
HOW TO ORDER REPAIR KITS
1. Locate item number and kit number in this maintenance manual.
2. Verify the size of the valve the parts are to be used for.
3. Provide full model number located on I.D. plate.
4. Record kit number.
5. A serial number (located on the I.D. plate) will assist in ordering the proper kits.
6. Contact your local FEBCO Parts Distributor.